摘要
对不同施肥水平下旱地花生荚果发育动态的研究结果表明:旱地花生荚果重量和体积增长过程呈“慢—快—慢”变化,可拟合成Logistic方程,荚果重量最大增长日为幼果形成后43 ̄48d,最大增长速率为0.3791 ̄0.5947g/(株·d);荚果体积最大增长日为幼果形成后36 ̄39d,最大增长速率为0.8487 ̄1.6684cm3/(株·d)。荚果重量和体积快速增长期持续20 ̄30d。随施肥量的增加,荚果重量和体积最大增长日出现时间推迟。
The study focused on pod development of dryland peanut by different treatments of fertilizer application. The results showed that pod weight and pod volume increasing could be characterized as a 'slow-rapid-slow' rhythm. It's cumulative dynamics was simulated by a Logistic eguation. The growth rate of pod weight had a peak of 0.3791~0.5947g/(plant·d ) at 43~48day after emergence, and the peak(0.8487~1.6684cm3/<plant·d>)of growth rate of pod volume occurred at 36~39day after emergence, the rapid growth period was 20~30days.Date of peak growth rate of pod weight and pod volume had a changing process from earlier to later with an increase of the amount of fertilizer application.
出处
《中国农学通报》
CSCD
2005年第7期193-194,427,共3页
Chinese Agricultural Science Bulletin
基金
临沂市计划课题"沂蒙山区旱地作物综合高产技术研究与开发"(临科字[1998]30019号)的一部分。